Indugopan, G R <br/><br/>
Detective Prabhaakaran / 
G.R. Indugopan 
 - 6th ed. 
 - Kottayam:  D C Books,  2022. 
 - 384p. 
<br/><br/><label>ISBN: </label>9789353909215 
<br/><br/><label>Dewey Class. No.: </label>894.8123  / IND/D